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Home >> Ford >> 2011 >> Focus S, Standard >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Controls - Powertrain DTC Charts & Descriptions - DTC P164B Through DTC UXXXX - (Except Diesel & Hybrid) >> DTC U300C: Ignition Input Off/On/Start

DTC U300C: Ignition Input Off/On/Start

U300C - IGNITION INPUT OFF/ON/START

Description:  The powertrain control module (PCM) monitors the ignition key state. This DTC sets when the key state is not available.
Possible Causes: 
  • ISP-R circuit open
  • ISP-R circuit short to ground
Diagnostic Aids: 
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All GO to PINPOINT TEST B .